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GFI

GFI

Product catalog summary

Document Overview

This technical catalog provides comprehensive multilingual information on GFI series industrial fans, covering specifications, applications, performance characteristics, mechanical dimensions, mounting options, and terminology. It serves as a detailed reference for selection, installation, and operation in various industrial environments.

1. Use and Executions

GFI fans are primarily designed for suction of dusty air in industries such as pneumatic conveying, cement, foundries, burners, mills, pasta production, chemical, siderurgical, and metallurgical sectors. They support low flow rates with medium to high pressures. For conveyed fluid temperatures above 90°C up to 350°C, heat protection components (a heat-proof fan mounted on the shaft) and special aluminum coatings are applied to protect the fan from thermal damage. Additional details on selection and optional components are available in separate technical and accessory catalogs.

2. Performance Characteristics

Flow Rate: Provided with ±5% accuracy.
Noise Level: Specified with a tolerance of +3 dBA.
Power Absorbed: Values given with ±3% tolerance; consultation with the technical office is recommended for precise data.
Maximum Admissible RPM: RPM limits decrease as operating temperature increases, categorized into <90°C, 90–200°C, and 200–350°C ranges to ensure safe operation.

Model-specific RPM limits vary, e.g., from 4000 RPM at lower temperatures down to approximately 3200 RPM at higher temperatures for certain models.

3. Dimensions and Weights

Detailed tables provide overall dimensions (in millimeters) and weights for each fan model, including parameters such as A, B, Ca, E, F, G, H, H1, H2, K, and shaft-related dimensions. Weights are given as minimum and maximum values, sometimes differentiated by the presence of cooling fans. Most models allow adjustable orientation, except for some larger fixed models (e.g., E10010, G10010, G11210).

Orientation is standardized at RD 270°, with alternative positions referenced via dimensions H1 and H2 in an orientation table.

4. Supports, Bearings, and Flanges

Supports and Bearings: Specific support codes and bearing types (e.g., 6304 Z to 6309 Z, NU 310 ECP) are assigned per model, with distinctions between impeller and pulley sides and versions with or without cooling fans.
Flanges and Counterflanges: Suction and delivery flange dimensions include diameters, hole counts, hole diameters, and maximum screw diameters. Threading follows ISO metric coarse pitch triangular profiles for secure fastening.

5. Terminology, Symbols, and Units

The catalog standardizes terminology for fan components and supports in multiple languages, defining parts such as casing, base, impeller, shaft, bearings, greasers, and cooling fans. Symbols and units used include flow rate (V), total and dynamic pressure (pt, pd), outlet speed (c), power (kW), rotation speed (RPM), noise level (dBA), and efficiency (%).

6. Standards and Testing

Fan construction and orientation comply with UNI ISO 13349:2002. Testing and inspection follow UNI 10531:1995. Performance data refer to air at +15°C, 760 mmHg, and specific weight 1.226 kg/m³. Noise measurements are conducted in free field at 1.5 m distance under maximum efficiency conditions, adhering to UNI EN ISO 3740, 3744, 3746, and 13347 standards. Dimensions are in millimeters. Provided tables are indicative and non-binding.

Critical Recommendations

Always respect maximum RPM limits according to operating temperature to prevent damage.
Consult the Technical Office for precise absorbed power and noise data tailored to specific fan models and applications.
Use heat protection components and special coatings for applications above 90°C.
Follow orientation guidelines and use the orientation table to ensure correct installation geometry.
Match support and bearing types accurately to the fan model and configuration.
Ensure flange specifications are strictly followed for proper system integration and sealing.
Consider dimensional and weight variations, especially when cooling fans are included, for handling and mounting.

Summary

This catalog is a detailed technical resource for GFI series fans, providing essential data on performance parameters, mechanical dimensions, mounting options, and component specifications. It supports engineers and technical personnel in selecting, installing, and operating fans safely and efficiently within their designed operational limits across diverse industrial applications.

Catalog excerpts

Contents Table des matières Inhaltsverzeichnis Sumario ITALIANO • Edizione catalogo (mm/aaaa) • Per vericare se questa versione di catalogo è l'ultima disponibile, collegarsi con www.cimme.it, alle sezioni Prodotti o Download. ENGLISH • Catalogue edition (mm/yyyy) • Connect to www.cimme.it, sections Products or Download to check if this is the latest catalogue version. FRANÇAIS • Edition catalogue (mm/aaaa) • Pour vérier si cette version indiquée dans le catalogue est la dernière disponible, se connecter à www.cimme.it, aux sections Produits ou Téléchargement. DEUTSCHE • Ausgabe des Katalogs...

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Impiego ed Esecuzioni Use and Executions Emploi et Exécutions Anwendung und Ausführungen Uso y Ejecuciones Per l’aspirazione di aria polverosa. Vengono utilizzati per i trasporti pneumatici, nelle cementerie, nell’alimentazione dell’aria dei cubilotti, nelle fonderie e nei bruciatori a nafta, nei mulini, nei pastici, nelle industrie chimiche, siderurgiche, metallurgiche ove siano richieste piccole portate con medie ed alte pressioni. Per temperature del uido trasportato superiori a 90 °C no a 350 °C viene calettata sull’albero fra supporto e coclea una ventolina paracalore; inoltre il ventilatore...

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CD Aspetto e Campo di funzionamento □D Appearance and Range of operation [CilfimCl CED Aspect exterieur et Champ de fonctionnement CD Aspecto y Campo de funcionamiento

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Dimensioni d’ingombro e Pesi Overall dimensions and Weights Dimensions hors-tout et Poids Abmessungen und Gewichte Dimensiones del espacio ocupado y Pesos Il ventilatore è orientabile. The fan is adjustable. Le ventilateur est orientable. Der Ventilator ist einstellbar.

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Dimensioni d’ingombro e Pesi Overall dimensions and Weights Dimensions hors-tout et Poids Abmessungen und Gewichte Dimensiones del espacio ocupado y Pesos Tabella orientamenti Orientation table Tableau des orientations Tabelle der Einstellungen Tabla de orientaciones L’orientamento rafgurato a sinistra è RD 270 e la sua distanza tra la base e l’asse corrisponde alla dimensione H in tabella. Per altre rotazioni consultare la Tabella orientamenti che fornisce la corrispondenza con le dimensioni H, H1 o H2. Il codice Supporto e le dimensioni, indicati tra parentesi (...), si riferiscono all’esecuzione...

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Dimensioni d’ingombro e Pesi Overall dimensions and Weights Dimensions hors-tout et Poids Abmessungen und Gewichte Dimensiones del espacio ocupado y Pesos Il ventilatore non è orientabile. The fan is not adjustable. Le ventilateur n’est pas orientable. Der Ventilator ist nicht einstellbar.

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Dimensioni basamento (per E12) Baseframe dimensions (for E12) Dimensions du châssis support (pour E12) Abmessungen des Grundrahmens (für E12) Dimensiones bancada (para E12) Le dimensioni fra parentesi (...) si riferiscono all’esecuzione con ventolina di raffreddamento. I 2 valori di Peso indicati in tabella si riferiscono ai valori minimi e massimi delle quote Nb/Mb The dimensions in brackets (...) refer to the manufacture with cooling fan. The 2 Weight values indicated in the table refer to the minimum and maximum values of Nb/Mb dimensions Les dimensions entre parenthèses (...) se réfèrent...

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Tipi di Supporto e Cuscinetti Supports and Bearings Types de Support et Roulements Typ des Trägers und der Lager Tipos de Soporte y Cojinetes Il codice Supporto fra parentesi (...), si riferisce all’esecuzione con ventolina di raffreddamento. > Lato Girante • > Lato puleggia The Support code in brackets (...), refers to the manufacture with cooling fan. > Impeller side • > Pulley side Le code Support entre parenthèses (...), se réfère à la version avec turbine de refroidissement. > Côté Turbine • > Côté Poulie Der Trägercode zwischen den Klammern (...), beziehen sich auf die Ausführung mit Kühlügel....

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Note Notes Remarques Hinweise Notas

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CD Aspetto e Campo di funzionamento □D Appearance and Range of operation [CilfimCl CED Aspect exterieur et Champ de fonctionnement CD Aspecto y Campo de funcionamiento

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